Cliven Bundy has been arrested in Portland

Rancher Cliven Bundy near his ranch after speaking with the news media January 27 in Bunkerville, Nevada. AP Photo/John Locher Cliven Bundy, the father of the jailed leader of the Oregon refuge occupation, has been arrested in Portland, the FBI said.

Authorities arrested the 74-year-old Nevada rancher, who was the center of a standoff with federal officials in Nevada in 2014, after he arrived at Portland International Airport from Las Vegas on Wednesday night. He was booked into the lockup just before 11 p.m., according to Multnomah County Jail records. No charges were listed, and his projected release date was listed as unknown.

The FBI confirmed Bundy was taken into federal custody but declined to provide a reason or other details, saying further information would be released by the US attorney's office in Las Vegas, which did not respond to a phone call early Thursday.

The Oregonian reported that Bundy would face a conspiracy charge of interfering with a federal officer related to the stalemate at his ranch in 2014.

In March of that year, Bundy clashed with federal officials over grazing rights on government land. Federal officials eventually backed away from seizing his cattle, but the dispute remains unresolved.

The Bureau of Land Management says the family has not made payments toward a $1.1 million grazing fee and penalty bill.

Armed group leader Ammon Bundy had been demanding that the Malheur National Wildlife Refuge in southeastern Oregon be handed over to local control for ranching, mining, logging, and other uses and that two jailed ranchers in the area be freed.

Authorities arrested Ammon Bundy, his brother Ryan Bundy, and other group leaders as they traveled to a community meeting January 26 north of the refuge when authorities set up a road block.

Robert "LaVoy" Finicum, the group's spokesman, was killed in a confrontation with the FBI and Oregon State Police on the remote road.

Bundy and others arrested in conjunction with the standoff face felony charges of conspiracy to impede federal officials in their official duties through the use of force, intimidation, or threats.